Apple-2-Tools/dmolony-DiskBrowser
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check for index in range

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This commit is contained in:
Denis Molony 2016-02-24 13:34:00 +11:00
parent 52cfdebb63
commit 054fc41878
1 changed files with 5 additions and 5 deletions
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10
src/com/bytezone/diskbrowser/applefile/IconFile.java
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@ -26,7 +26,7 @@ public class IconFile extends AbstractFile
while (true) while (true)
{ {
int dataLen = HexFormatter.getWord (buffer, ptr); int dataLen = HexFormatter.getWord (buffer, ptr);
if (dataLen == 0) if (dataLen == 0 || (dataLen + ptr) > buffer.length)
break; break;
icons.add (new Icon (buffer, ptr)); icons.add (new Icon (buffer, ptr));
ptr += dataLen; ptr += dataLen;
@ -146,7 +146,7 @@ public class IconFile extends AbstractFile
/* /*
Offset Color RGB Mini-Palette Offset Color RGB Mini-Palette
0 Black 000 0 0 Black 000 0
1 Blue 00F 1 1 Blue 00F 1
2 Yellow FF0 2 2 Yellow FF0 2
@ -166,16 +166,16 @@ public class IconFile extends AbstractFile
15 White FFF 3 15 White FFF 3
The displayMode word bits are defined as: The displayMode word bits are defined as:
Bit 0 selectedIconBit 1 = invert image before copying Bit 0 selectedIconBit 1 = invert image before copying
Bit 1 openIconBit 1 = copy light-gray pattern instead of image Bit 1 openIconBit 1 = copy light-gray pattern instead of image
Bit 2 offLineBit 1 = AND light-gray pattern to image being copied Bit 2 offLineBit 1 = AND light-gray pattern to image being copied
Bits 3-7 reserved. Bits 3-7 reserved.
Bits 8-11 foreground color to apply to black part of black & white icons Bits 8-11 foreground color to apply to black part of black & white icons
Bits 12-15 background color to apply to white part of black & white icons Bits 12-15 background color to apply to white part of black & white icons
Bits 0-2 can occur at once and are tested in the order 1-2-0. Bits 0-2 can occur at once and are tested in the order 1-2-0.
"Color is only applied to the black and white icons if bits 15-8 are not all 0. "Color is only applied to the black and white icons if bits 15-8 are not all 0.
Colored pixels in an icon are inverted by black pixels becoming white and any Colored pixels in an icon are inverted by black pixels becoming white and any
other color of pixel becoming black." other color of pixel becoming black."